Fountain-pen.



VV. A. STAFFELDT.

FOUNTAIN PEN.

APPLICATION man APR.|.1918. l

Patented Nov. 5, 1918.

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silient portion vof the feed bar into the feed duct, wh

ing thepin therewith upon the removal ofy the cap to permit ink to flow 30 lowing is a specification. e relates to fountain pens,

'WILLI A., STAFFJELJDILBUF READING, MICHIIG?.

Specification of .Letters Patent.

rammenta a, 1era,

Application led April 1, 1913. Serial No. 326,068.

To all whom t may concern:

Be it known that l, WiLLIAM A. STAF- FELDT, "a citizen of thelUnited States, and a resident of Reading, in the county of Hillsdale and State of Michigan, have invented a certainnew `and useful lmprovenient in Fountain-Pens, of which the folrlhis invention and the primary object of the invention is to provide aspring controlled resilient ob- `struction which is automatically forced into pen when the cap is i `mounted over the head of the pen for e'ec* libl pointand prevent-,leakage ofthe inl;` out of the pen whenthei More speciiicall AItion is to provide the feed bar is the feed duct of the tivelycutting H the flow of ink to the latter is not in use.

a fountain `pen in which therefor when the e cap is mounted overuthel head ofthe pen taken in connection and further to provide a Hat spring structurewhich` carries a pin'for forcing the reich spring moves outwardly, carryfeed duct.

Further objectsof this invention will ap pear in the following detailed description, with the accompanying drawing forming a part of this specification,

and in which drawing: y

. Figure 1 is a fragmentary section through the improved fountain pen with the cap removed and showing no feed duct.1 to

obstruction of the F ig. 2 is a `fragmentary section through the pen showing the e showing the obstructionin an obstructing ith tid

position. i

yFig. 3 :is aside of the pen. i Fig. 4 is a `detail perspective view of the lresilient obstruction which forms a part 1of` the feed bar.

Fig. 5 is a detail perspective of the spring which controls the operation of the obstructron.

i lTig. 6 is a fragmentary sectional view i through the spring illustrating the manner of connecting the `obstruction engaging pin to the spring.

" p Referring more particularly to the `drawthe object of the inven* provided with `a resilient `portion which isforced into the feed duct to lform an obstruction a suitable bolt through the `capin place and also elevation of the feed bary ing, 1 designates the barrel of the fountain pen which has the head 2 which carries the feed bar 8 forfeeding the ink `from the interior ofthe barrel 1 to the point 4 of the pen. The feed bar 3 is providedwith a feed duct 5 which curves upwardly near the outer end of the feed bar and engages the inner concaved surface of the pen 4.

` The feed bar 3 is composed of a main body 6 and a resilient portion 7. The resilient portion 7 comprises a relatively long tongue 8, the outer free end of which has its under surface curved as shown at 9` to torni the upper wall of the curved forward end of the feed duct 5 and airelatively large attaching head 10 which is attached in "any suitable manner to the main body 6 of the feed bar 3.` Q

r111e head 2 of the barrel 1 of the penis provided with `an annular bead 'or enlarge-` ment 11 formed at its outer terminal which is recessed as shown at 12 to receive the lower horizontal end 13 of a flatspring 14. rlhe Hat spring 111 is attached by means of or rivet 15 to the head 2 and it extends longitudinallyof the head having a curved or 'bowed portion 16 which is curved to conform to the curvature `of the annular enlargement 11. A pin 17 is carried by the bowed portion 16 of the dat4 spring 14:, and it `is provided with a substantially frusto-conical head 18 which is connected to the main body of the pin by a relatively small neck 19. The spring 16`is down-struck as shown at 20 for engagement with the neck 19, so as to support the `pin 17 by the spring 14 in such `manner as to allow compensating movement of the pin under either inward or outward movement of the flat spring.

i The pin 17 projects downwardly through an opening in the annular enlargement 11 and through an opening formed in the pen point, having its lower inner end rounded and engaging the upper surface of the resilient tongue 8 near the outer free end of the same.

.The substantially horizontal end 111- of usual type of reduced i the spring 14 rides in the recess 12 and spring foutwardly,

cap is mounted on the barrel 1, for forcing the spring 14 inwardly which, through the medium of tongue 8 downwardly into the feed duet 5, forming an obstruction for the duct to prevent ink from leaking or oozing out of the yduet when'the pen is not in use. When the cap 21 is removed from connectionwith the barrel 1, the resilient feed of the spring 14eA willhcause the bowed portion 16 thereof to vrmoving the pin 17 outwardly and allowing the resilient tongue 8 toassume itsnormal position as illustrated in Figi. 1 of the drawing, which allows ink tolfiow freelythrough the feed duct 5. Having kthus fully described the invention what isclaimed is:

1. In a fo-untain pen, a feed bar composed cfa main v'body provided with a .feed duct, .andV a resilient tongue forming the upper lportion ofthe wall of said duct, said body provided with lateral enlarged recesses at one end, and lateral extensions formed upon said tongue and engaging 1n said recesses to Aprevent :longitudinal movement of the tongue.

j j In a fountain pen, a barrel, a feed bar composed of a main body provided with a feed duct, and a resilient ton-gue forming the upper portion of the wall of said duct,

'said body :provided .with ylateral enlarged recesses `at one end, lateral ,extensions formed upon saidftongue and engaging insaid re- 2 the; tongue,

tosses iso-prevent .longitudinal movement of a jeap, .and means carried by and operated by the'mounting barrel to move the free said .barrel 3f.. In 1a fountain pen, a barrel, a yfeed bar carried' by said barrel and provided with a .feed`:duct, a resilient tongue carried by said ffeedfbar. for movement into said feed duct to damgthe same, a iiat spring carried by lsaid barrel, a pin carried Vby said iiat spring andqenga'gin'g said resilient tongue to hold the ,same in a damming position.

. wir In'a 'fountain pen, a barrel', a cap, a feed bar carried by said barrel and provided with a feed duct, a resilient tongue carried A'loyrsaid lfeed/bar for movement'into said feed duet to dam lthe same, a flat' spring carried by said barrel forV operation by ,said cap to fmoivesaid resi-:lient tongue kinto a damming Jposition vwhensaid cap' is connected lto said ba-rrel. i

5. In a fountain pen, a barrel, a -feed wbar carried :by rs'aid barreland comprising a r`.ni-ai-i bodyv provided with a feed duct,v and a resilienttongu'e forming a portion yof the wall offsaid duet,xaflat springV carried by said' barrel and normally resting inspaced -relationto the barrel, .a pin carried :by said fiat' spring, -a cap, said .spring adapted to brel-forced inwardly upon the connection of the pin 17 Vforces the resilient provided with a said cap and said barrel whereby said resilient tongue will be displaced by movement of the pin carried by said flat spring to obstruct said feed duct. p

6. In a fountain pen, a feed bar provided with a feed duct having its delivery end lcurving to one side of the bar, a resilient tongue forming a portion of the side of the feed bar toward which the duct curves, the free end of the tongue shapedto snugly fit the curved portion of the wall of said duct to form a dam for the duct upon inward displacement of the tongue, a fiat spring, a pin .carried by said spring and engaging the free end of said tongue to move the tongue into a damming position uponinward movement of the spring- 7. In a fountain pen, a barrel, a capfa feed bar provided with a feed duct having its delivery end curving to one side of the bar, a resilient tongue forming a portion of the side of the bar toward which the duct curves, the free end of said tongue shaped to snugly fit the curved portion of the wall of said duct to form a dam for the duct upon inward displacement ofthe tongue, a flat spring carried by said barrel for operation by said cap to move said resilient tongue into a dannning position when the cap is connected to said barrel, means for guiding the movement of said spring, and means for limiting the outward movement of the spring.

8. In a fountain pen, ,ab'arreL a cap, a feed bar carried by said barrel 4and provided with a feed duet, a' .resilient tongue carried by the feed bar for movement i'nto the feed duct to dam the same, a `fiat spring' `carried by said barrel for operation by said cap to move said resilient tongue intol a damming position when said cap is connected to the barrel, means for guiding 'the' vmovement of said spring, and means to ,limit-the youtward movement of the spring.

91 In `a fountain pen, a barrel, a leap, a lfeed .barcarried by said barrel andprovided with a feed duct having its delivery end curving to one side of the bar, said feed bar provided with a longitudinally extending cut-out portion having lateral enlargements at one end, a resilient tongue seated in said longitudinal cut-out portion and forming a portion of the side of the feedbar toward which -the duct curves, lateral extensions formed upon said resilient tongue andseated in said lateral recess enlargements to prevent longitudinal movement ofthe tongue.

10. In a fountain pen, `a barrel, a cap, a feed bar carried by sai-d barrel and provided with a feed duct having its delivery end curving'to one side of lthe bar, 'said feed bar longitudinally extending eut-out portion having lateral enlargements at one end, a resilient tongue Aseated in .said longitudinal out-out portion and yforming rasante a portion of the side of the feed bar toward which the duct curves, lateral extensions formed upon said resilient tongue and seated in said lateral recess enlargements to prevent longitudinal movement of the tongue, the free end of said tongue shaped to snugly lit the curved portion of the Wall of said duct to form a dam for the duct upon inward displacement of the tongue, and means carried by said barrel for operation upon mounting of said `cap upon the barrel to move the free end of said tongue inwardly into a damming position.

l1. In a fountain pen, a barrel, a cap, a feed bar carried by said barrel and provided with a feed duct having its delivery end curving to one side of the bar, said feed bar provided with a longitudinally extending recess in the sides toward which the de- Copes of this patent may be obtained for live cents each, by addressing' the livery end of said duct curves, a resilient tongue seated in said recess, the free end of said tongue shaped to snugly lit the curved portion of the Wall of said duct to form a dam for the duct upon inward displacement of the tongue, an enlargement formed upon the delivery end of said barrel, a flat spring carried by said barrel, said enlargement being provided with a recess for receiving an inturned end of said flat spring to guide and limit the movement of the fiat spring, a pin carried by said spring and engaging said tongue,` said spring adapted to be forced inwardly toward the barrel upon mounting of said cap upon the barrel to force said resilient tongue inwardly into a damming position.

WlllLLll A. STAFFELDT.

Commissioner of Patents,

Washington, JD. It. 

